Controller for filters.



F. B. LEOPOLD. CONTROLLER FOB FILTERS. APPLICATION IILBD 11:12.1, 190a.nnnnwnn APB. 1a, 1911.

992,888. Patented May 23, 1911.

2 SHEETS-SHEET 1.

. 29 FIG. 1 33 a 2o 5? 27 a 2 -zs F. B. LEOPOLD.

CONTROLLER FOR FILTERS.

APPLICATION 111.1111 ran. 1, 190a. nrmnwnn APB.13, 1911.

992,888. Patented May 23, 1911.

2 SHEETS-BHEET 2.

FIG-.6

wl'rmzssss. INVENTO R. 2, t/T'M fizxw f M FREDERICK 13. micron, orSEWICKLEY, PENNSYLVANIA.

CONTROLLER FOB FILTERS.

Specification of Letters Patent.

Patented May 23, 1911.

Application filed February 1, 1908, Serial No. 413,894. Renewed April13, 1911. Serial No. 620,909.

in connection with filters.

My invention comprises the novel features hereinafter set forth andclaimed.

In the accompanying drawing Figure 1 is a vertical sectional view of myimproved controllers; Fig. 2 is a cross section on the line 22, Fig. 1;Fig. 3 is a vertical sectional view of a portion of the outer and innercasings showing the manner of communication between the two; Fig. 4 is aplan view of the disk; Fig. 5 is a vertical section of the bushing; Fig.6 is a vertical section of a modified form of my invention.

In the drawings, the numeral 2 designates a suitable shell or casing,composed of a single casting, having the inlet 3 and the outlet 4. Thecasing 2 is provided with a diaphragm 6 which forms the annularpassage 7for the water to direct the same up into the controller. Within thecasing is the bore 8 closed at its bottom by the plate 9, secured tosaid casing 2 by the screws 10.

Fitting within the bore 8 is the bushing 11 having the openings 12.Within the bushing 11 is the valve 13, which is adapted to control theopenings 12 in the bushing 11. The openings 12 are preferablytriangular, or tapering, in shape and as the valve 13 moves over saidopenings the admission of the water is more gradual. The valve 13 hasthe shoulders 13* which form the bearing faces of said valve in contactwith the inner walls of the bushing 11 and the friction is reduced.Secured to the valve 13 is the stem 14 which passes up through a bushing15 in the yoke 16, secured to the casing 2 in any suitable manner.

Secured to the upper end of the valve stem 14 is the disk 18 providedwith the strengthening radial ribs 19. The disk 18 is located in thechamber 20, said chamber being formed by the ring 20 secured to theinner casing 21 by means of the screws 22. The upper rim of the ring 20has the flanges 23 into which the screws 22 enter to support the saidring 20 within the casing 21. These flanges 23, when said ring issecured to the casing 21, form the annular passage 23*. The inner casing21 is secured to the outer casing 2 by the screws 24. Resting upon theupper rims of the ring 20 and the inner casing 21 is thespider 25, saidspider having the arcs 26 which are adapted to normally rest upon theflanges 23 and on the upper rim of the ring 20, as well as upon theupper edge of the inner casing 21. The arcs 26 form a valve forcontrolling the amount of water which passes through the passage 23.Idlers 27 projecting downwardly from the arcs 26 of the spider 25, areadapted to engage the inner face of the rim 20 to reduce the friction inturning the spit er 25, as hereinafter fully set forth.

In the middle of the spider 25 is an opening 28 through which the stem29 passes. Surrounding said stem is the spring 30 which is interposedbetween the loose collar 31 and the shoulder 32 on said stem. The stem29 passes up through a suitable stufling box 33. The action of thespring 30 is to normally force the spider 25 into close contact with theupper rims of the ring 20 and the inner casing 21. A cover plate 31 issecured to the outer casing 2 by means of the bolts 35. The cover plate34 is provided with the air outlet 38. This outlet permits of the escapeof the air which will be freed from the water due to the surging of thewater over the inner casing into the annular chamber 36.

When my improved controller is in use, the water enters the inlet 3, andpassing into the annular chamber 7 passes thence through the openings 12in the bushing 11 into the inner casing 21. The main body of Waterascends into the disk chamber 20 and, passing around the disk 18, passesout the upper end of said chamber and overflows the sides of the innercasing 21 into the space 36 between the inner and outer casings 21 and2. As stated above, the water ascends in the disk chamber 20 and thegreater portion of the water passes up around the disk 18,

while a portion may be compelled to pass up into the annular passage 23whence it flows through the openings 37 in the upper rim of the ring 20*and descends into the annular chamber 36. From the annular chamber 36the water passes down and out by way of the outlet 4.

The fact that the water is admitted to the lower side of the disk 18under a certain head, keeps said disk properly balanced so that thevalve 13 controls the oaenings 12 in the bushing 11. As the rate 0 flowfrom the filter decreases, the head or pressure of the water enteringthe openings 12 decreases proportionately and the pressure on the disk18 diminishes and the valve 13 is lowered so as to increase the size ofthe openings 12 to admit a uniform quantity of water to the controller.By having the triangular shaped openings 12, the increase in the size ofthe openings as the valve is lowered,is in a gradually increasingproportion. As the rate of flow of the water from the filter increases,the pressure on the disk 18 is greater and the valve 13 is raised todecrease the size of the openings 12. By having a portion of the waterpass up through the passage 23, the rate of discharge of the controllermay be increased as desired to the limit of the capacity of the passage23".

It is apparent, that by turning the spider 25 by means of the stem 29,the arcs 26 may be removed over to control the size of the openings 37leading from the passage 23. By increasing or decreasing the size of theopenings 37 the amount of water which may pass up through the passage 23is accurately controlled. Any air released from the water in its surgingover the inner casing 20 is allowed to escape by the outlet 38 and as aconsequence any churning of the disk 18 is obviated and it workssteadily and positively.

In Fig. 6 I have illustrated a modified form of my invention in whichthe ring 20 is dispensed with and all the water passes up and around thedisk 18.

What I claim is:

1. In a controller, the combination of a suitable outer casing having aninlet and an outlet, an inner casing within said outer casing having adisk chamber therein, a disk in said chamber of smaller diameter thanthe disk chamber to leave a space between the periphery of said disk andthe walls of said disk chamber, and a valve connected to said diskadapted to completely shut off the supply of fluid to said inner casing.

2. In a controller, the combination of a suitable outer casing having aninlet and an outlet, an inner casing communicating with said outercasing having a disk chamber communicating with the space be tween saidinner and outer casings, a disk in said disk chamber, said disk ofsmaller diameter than said chamber to leave a space between theperiphery of said disk and said chamber, and a valve connected to saiddisk adapted to completely shut off the supply of fluid to said innercasing.

3. In a controller, the combination of a suitable outer casing having aninlet and an outlet, an inner casing communicating with said outercasing at its upper end, a cylindrical shell within said inner casingforming a disk chamber therein and leaving a space between said innercasing and said shell which communicates with the space between saidinner and outer casings, means for controlling the size of thecommunicating opening leading from said space between said shell andsaid inner casing to the space between said inner and outer casings, adisk in said disk chamber, said disk of smaller diameter than saidchamber to leave a space between the periphery of said disk and saidchamber, and a valve connected to said disk controlling the supply offluid to said inner casing.

4:. In a controller, the combination of a suitable outer casing havingan inlet and an outlet, an inner casing communicating at its upper endwith said outer casing, a cylindrical shell within said inner casingforming a disk chamber and a space between said shell and said innercasing, and openings at the upper end of said inner shell leading fromsaid space into the space between said inner and outer casings, a valvecontrolling said openings, a disk in said disk chamber, said disk ofsmaller diameter than said disk chamber to leave a space between thepcriphcry of said disk and said chamber, and a valve connected to saiddisk controlling the supply of fluid to said inner casing.

In a controller, the combination of a suitable outer casing having aninlet and outlet, an inner casing having openings leading to said outercasing, a spider having arcs adapted'to move over said openings, a ringin said inner casing forming a disk chamber in said inner casingcommunicating with said inner and outer casings, a disk in said diskchamber, said disk of smaller diameter than said chamber to leave aspace between the periphery of said disk and said chamber, and a valveconnected to said disk controlling the supply of water to said innercasing.

6. In a controller, the combination of a suitable outer casing havingan. inlet and outlet, an inner casing, a ring in said inner casing andsecured to the same forming a disk chamber communicating with the spacebetween said inner and outer casings, said disk chamber having flangesat its upper rim forming openings leading from said inner casing to thespace between said inner and outer casings, a removable spider havingarcs adapted to move over said openings, a

disk in said disk chamber, the disk of smaller ERICK B. LEOPOLD, havehereunto set my diameter than sald chamber to leave a space hand.

between the periphery of said disk and said FREDERICK B. LEOPOLD.chamber, and a valve connected to said disk y 5 controlling the supplyof Water to said inner Witnesses:

casing. ROBERT C. TOTTEN,

In testimony whereof, I, the said Fmm- J. R. KELLER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

' Washington, D. G.

